Anticorrosive and antirust nanometer fiber paint for containers, method for preparing and spraying paint

Abstract

The invention discloses an anticorrosive and antirust nanometer fiber paint for containers, and a method for preparing and spraying the paint, wherein a component A is composed of a resin solution, talcum powder, silicon carbide, lithopone and nanometer fiber; and a component B is composed of polyamide and a mixed solvent; the resin solution is composed of a solvent and resin; the component A is mixed with the component B on ratio of 100:10-15 to form the paint. The method comprises steps as follows: preparing the solvent, dissolving the resin, preparing the component A and the component B, and then preparing the paint; and the spraying method comprises steps as follows: uniformly spraying the paint onto the surface of a sprayed object by an ejection gun, spraying 1-5 surface layers with each layer being 30 mu m thick, drying the sprayed sample for 60 minutes at 60-80 DEG C, or naturally drying the sprayed sample. The paint has strong salt mist resistance which is 10 times that of a traditional paint; the paint is soaked for 8 years in a 5% NaCl solution in the salt water resistance, the paint film is not changed; the acid resistance is more than 80 times that of the traditional anticorrosive paint; the alkali resistance is more than 40 times that of the traditional anticorrosive paint; and the paint film is not changed in oil resistance for 3 years later. The paint provided by the invention is applied to the containers and ship submarines.

Description

technical field [0001] The invention relates to a coating and a preparation and spraying method, in particular to a nanofiber anticorrosion and antirust coating for containers and a preparation and spraying method. Background technique [0002] The environment in which the container is located is a harsh corrosive environment. The so-called harsh corrosive environment refers to a highly corrosive environment. According to the definition of ISO12944-2, it means that the atmospheric environment is C4 (high), C5-I (very industrial), C5-M (very high marine) and Im2 corrosive environments immersed in seawater or saline water. There is no exact definition of the so-called long-term service life. It is generally believed that the service life is greater than 5 years, that is, the medium or high service life of the coating film stipulated in ISO12944-5. At present, the existing container anti-corrosion coatings have the following characteristics: high-thickness film, good surface t...

AI Technical Summary

Problems solved by technology

In recent years, although through introduction, digestion and absorption, China's anti-corrosion coating industry has made great progress in product quality, coating equipment, and coating technology; however, due to the ever-changing coating environment, the standardization of coatings and coatings has also It is managed by different industries and lacks scientificity and systematization. At present, the overall level of China's anti-corrosion coating industry is still lagging behind, especially for a large number of on-site coatings, the gap is even greater

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